The Daily Telegraph reports the Kings have been working behind the scenes for more than three months to secure Bogut's signature with Kings managing director Jeff Van Groningen reportedly reaching out to Bogut at the start of the year.

Bogut is returning after 13-years in the NBA, including a championship with the Golden State Warriors.

Bogut's stellar career saw him play with the Milwaukee Bucks, Warriors, Dallas Mavericks, Cleveland Cavaliers and the Los Angeles Lakers.

During the NBA lockout of 2011, Bogut was in talks with the Sydney Kings to play for the Sydney team while the NBA was shut down over an industrial relations battle between players and the league.

Bogut was unable to complete the move to the Kings seven years ago because the club was unable to fins an agreeable insurance policy to cover Bogut's $39 million contract with the Bucks.

Andrew Bogut is going to have more time for the Boomers.

They got their man in the end.

Bogut has previously spoken publicly about his determination to help the Boomers fight for a medal at the 2020 Olympics in Japan.

Aussie basketball legend and former Kings star and coach Shane Heal told The Herald Sun Bogut will be a force in the NBL.

"I reckon that the NBL season is perfect for him because there are fewer games (than the NBA) and I think it's a real key for him to try to play for Australia again," Heal said.

"I think he'll play at the next Olympics - his locker room presence and his experience and ability to mentor young kids is huge.

"Other people will argue that there will be players that could be more dominant, but they won't take into consideration what he can do in the locker room and I think that's critical."

He said the Kings must now be favourites for the 2018-19 NBL season.

"The thing that we expect from a team that Bogut plays with is to win," Heal said.

"The Sydney Kings, who have had so many big signings and blown the salary cap up over the years, but then haven't been able to translate that into wins, are now title favourites.

"It won't be from points and rebounds from Bogut, it will be because he's a winner.

"He's so much bigger, he's stronger, he's smarter, he's experienced he's great in the locker room, great for accountability and I just think this takes it to a whole other level because we have never had someone of this level playing in our league.

Are there any roster spots left for the upcoming @NBL season? Asking for a friend......?

Bogut told Fox Footy recently he had spoken to NBL owner Larry Kestelman about a potential move to the NBL.

"We've had numerous discussions," Bogut said.

"Even as soon as (Kestelman) got the job to take over the league, we'd had a couple meetings, so I've been in constant contact with the NBL for four or five years now, mainly around helping the game, and how do we build basketball into what it should be.

"I think it's about giving back to the game and being involved where I started.

"I started in the SEABL with the AIS and through the junior program in Melbourne and I think to come back and maybe play a season or two would be the icing on the cake for my career."